persist in 坚持
persistent efforts 坚持不懈的努力
persisted through 坚持到底
A: Why didn't you stop when it got difficult?
A：既然情况变得困难，你为什么不停止呢？
B: I persisted because I knew the goal was worth it.
B：我坚持了下来，因为我知道这个目标是值得的。
1) 持续存在
2) 坚持不懈
3) 固执己见
1. 持续；坚持
verb
1. To continue to exist or to continue to do something despite difficulties.
Synonym: endure, continue, persevere